If you were a bird, you could fly.

假使你是只鸟，你便会飞了。

《新英汉大辞典》

I wish you could fly back to me!

但愿你能回到我的身边。

youdao

I'd appreciate it if you could fly me to the moon.

如果你可以把我飞上月球去的话，我会非常欣赏你的。

youdao

And quicker than you could shut your eyes that frogwould jump straight up and catch a fly off the table.

VOA: special.2009.08.29

Why,if there was two birds setting on a fence, he would want you to decide which one would fly first so he could win money.

VOA: special.2009.08.29

It's very difficult to avoid them so you could fly into them and there's an obvious hazard for helicopters in the area.

BBC: red kite

Her buildings look as if they could fly you to the moon, but two recent buildings demonstrate that there is more to her work than a showy exterior: the Riverside Museum, which houses an important collection of historic vehicles, in Glasgow, and the Evelyn Grace Academy in Brixton.

NEWYORKER: Lady Zaha

You could literally be having to fly all the way across the United States.

WSJ: Baseball's Unsure If It Wants to Party